Mechanistic-Based Evaluation of Performance Thresholds for Balanced Mix Design Asphalt Surface Mixtures

Habbouche, Jhony; Boz, Ilker; Diefenderfer, Stacey D; Underwood, Benjamin Shane; Othman, Omar

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Mechanistic-Based Evaluation of Performance Thresholds for Balanced Mix Design Asphalt Surface Mixtures

2025-08-01
By Habbouche, Jhony ; Boz, Ilker ; Diefenderfer, Stacey D ; ...

File Language:

English

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Creators:

Habbouche, Jhony ; Boz, Ilker ; Diefenderfer, Stacey D ; Underwood, Benjamin Shane ; Othman, Omar
Corporate Creators:

Virginia Transportation Research Council (VTRC)
Corporate Contributors:

Virginia. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Asphalt Mixtures Empirical Methods Engineered Materials Mechanistic-empirical Pavement Design Mix Design Structural Design
Publication/ Report Number:

FHWA/VTRC 26-R08
Resource Type:

Tech Report
Geographical Coverage:

United States;Virginia
Edition:

Final Report
Corporate Publisher:

Virginia Transportation Research Council (VTRC)
Abstract:

As part of the Virginia Department of Transportation (VDOT) balanced mix design (BMD) implementation process, VDOT selected three quick, simple, and practical empirical tests to evaluate asphalt mixtures against different modes of distress for design and acceptance. These tests include the Cantabro test, with a mass loss limit of 7.5%; the indirect tensile cracking test, requiring a minimum cracking tolerance index of 70; and the asphalt pavement analyzer (APA) rut test, with a maximum rut depth of 8.0 mm. These tests assess the potential performance in durability, cracking, and rutting of asphalt mixtures, respectively. In 2021, performance-based specifications were evaluated to fully implement BMD in Virginia. Additional mixture tests confirmed the reasonableness of the established performance criteria. However, further investigation was advised to assess correlations between the Cantabro, APA rut, and indirect tensile cracking, tests and fundamental tests, mechanistic-empirical (ME) simulations, and field performance, ensuring suitable threshold criteria for BMD implementation.
Format:

PDF
Funding:

120747
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:0098850fab5c4cf232c8b31e03c235396f82f795bfb03500b3a4228f985da5a9e4ee529022d8a83b93c840e182ed6c396afbe1bafade7f033d2c9fb23ced9b45
Download URL:

https://rosap.ntl.bts.gov/view/dot/85834/dot_85834_DS1.pdf
File Type:

[PDF - 3.54 MB ]

File Language:

English

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